How dark is the sky in Duluth, MN?

Duluth's sky measures rural here. Little local light dome. Most stars are visible; the Milky Way is faint but often findable away from town lights. Only 9.1% of the 3,206 cities measured here read darker than Duluth.

Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute.

How far Duluth is from a meaningfully darker sky

Hermantown, MN, about 5 miles away as the crow flies, measures in the dark sky band, one step darker than Duluth. Actual driving distance will run longer than that straight-line figure.

Hermantown, MN is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

Duluth against the rest of the dataset

About 87,986 people live in Duluth, MN, sized enough to appear in this dataset of 3,206 incorporated US cities. Among all 3,206 cities here, Duluth ranks 292 from darkest to brightest, 1 being the darkest measured.